Bed of Chaos

Eminence— Whenever a creature dies for the
first time each turn, if Bed of Chaos is in the
command zone or on the battlefield. You may
pay life equal to its mana cost. If you do, put it
onto the battlefield under your control. Its a
black Demon in addition to its other types.
Bed of Chaos has power and toughness equal to
the number of Demons you control.